21470014044457 has 8 divisors (see below), whose sum is σ = 23422580106912. Its totient is φ = 19517572416000.

The previous prime is 21470014044449. The next prime is 21470014044461. The reversal of 21470014044457 is 75444041007412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21470014044457 - 2³ = 21470014044449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21470014044407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30747544 + ... + 31438057.

It is an arithmetic number, because the mean of its divisors is an integer number (2927822513364).

Almost surely, 2^{21470014044457} is an apocalyptic number.

It is an amenable number.

21470014044457 is a deficient number, since it is larger than the sum of its proper divisors (1952566062455).

21470014044457 is a wasteful number, since it uses less digits than its factorization.

21470014044457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62216999.

The product of its (nonzero) digits is 501760, while the sum is 43.

The spelling of 21470014044457 in words is "twenty-one trillion, four hundred seventy billion, fourteen million, forty-four thousand, four hundred fifty-seven".